| Night vision goggles with helmet |
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mh_elec@126.comorjacky@mh-elec.com
Night vision goggles with helmet(MHS-7)
DESCRIPTION
(MHS-7)night vision goggleswas developed to meet law enforcement requirements for surveillance at night, This high performance device is a reasonable alternative at lower cost to the majority-tor, IR”on” and low battery indicators, excess light exposure cut-off sensor and many other features.
The model is assembled with the highest quality Gen3 and Gen2+ image intensifier tubes, The unit may be combined with 3x, 4x, 5x,7x or 8x magnifier lenses to further extend the viewing capability.
KEY FEATURES
-Lightweight
-Easy to operate
-Bi-ocular design
-Comfortable for extended surveillance
-Designed for prolonged wearing
-Automatic brightness control
-PASGE and ACH/MICH helmets mountable allowing for “hands-free” operation
-Photo/Video camera adaptable(optional)
-Internal “low battery” and “IR on” indicators
-Protected against excess light exposure
-Integrated (5mW) IR illuminator
-Waterproof, corrosion and dust-resistance.
SPECIFICATION
|
Model
|
MHS-7
|
|
Magnification,
x
|
1
|
|
Field
of view, deg
|
40°
|
|
Lens
system
|
26.8mmF/1.2 26.8mm F/1.2
|
|
Adjusted
Interpupillary
distance, mm
|
Yes
|
|
Focus
range, m
|
0.25 / 10” to infinity
|
|
Eye
relief distance, mm
|
15
|
|
Diopter
setting, D
|
+5/-6
|
|
Overall
dimensions, mm
|
162x76x152
|
|
Weight
w/out headgear, g/oz
|
680/ 23.90
|
|
Power
supply
|
2xAA batteries,1.5V
|
|
Estimated
battery
life w/out IR, 73°F, hour
|
up to 80
|
GEN III / GEN II IMAGE INTENSIFIER TUBES
|
Classification
|
OMNI III
|
OMNI II
|
|
Photocathode type
|
18mm GaAs
|
18mm S-25
|
|
Photocathode sensitivity, typical,μA/lm
|
≥1800
|
≥550
|
|
Resolution, typical, lp/mm
|
63-72
|
48-58/57-64/60-72
|
|
Luminous gain, typical, fl/fcd
|
45000-55000
|
16000-25000
|
|
Signal-to-noise ratio, typical
|
23:1 or better
|
20:1 or better
|
|
FOM, typical
|
≥1500
|
≥1150
|
|
Tube
reliability standard, hour
|
12000
|
10000
|
|
Keep time,
typical, year
|
15
|
10
|
|
Warranty,
year
|
2
|
EFFECTIVE DISTANCE
|
Detection range, approx., m/yard
|
|
-quarter moon
|
up to 275/300
|
up to 200/220
|
|
-cloud cover
|
up to 240/275
|
up to 125/ 140
|
|
Recognition range, approx., m/yard
|
|
-quarter moon
|
up to 225/245
|
up to 175/195
|
|
-cloud cover
|
up to 150/165
|
up to 100/110
|
|
5mW IR
illuminator, approx., m/yard
|
up to 30/12
|
ENVIRONMENTAL DATA
|
Operating temperature, °C/°F
|
−40° to +50°/-40° to +122°
|
|
Storage temperature, °C/°F
|
0° to +50°/32° to +122°
|
|
Immersion, hour
|
2 meter for 1.0 (Optional)
|
|
Humidity,
%
|
up to
98%
|
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